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US4276252A
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Addition of Si-bonded hydrogen to an aliphatic multiple bond
Assignee: Wacker Chemie AG
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Filing: 1979-10-17
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Granted: 1981-06-30
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Expires: 1999-10-17
Abstract
Abstract Silicon containing compounds having Si-bonded hydrogen are added to an aliphatic multiple bond in the presence of a platinum catalyst selected from the group consisting of platinum compounds of the formula (R.sup.1)PtX.sub.2, where R 1 represents a cyclic hydrocarbon radical or a substituted cyclic hydrocarbon radical having 2 aliphatic carbon-carbon double bonds, X is the same or different halogen atoms and/or the same or different alkyl radicals, and compounds of the formula (R.sub.2 SO)(Z)PtY.sub.2 where R represents the same or different hydrocarbon radicals or substituted hydrocarbon radicals, Z represents a hydrocarbon having a carbon-carbon double bond and Y represents the same or different halogen atoms. An example of a platinum compound having the general formula (R.sup.1)PtX.sub.2, is dicyclopentadiene-platinum dichloride, while an example of a platinum compound having the general formula (R.sub.2 SO)(Z)PtY.sub.2 is dimethylsulfoxide-ethylene-platinum-(II)-dichloride.
Inventors
- 👤 Gerhard Kreis
- 👤 Karl-Heinrich Wegehaupt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:54
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0801; A; A61; A61K; A61K6/00; A61K6/90; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08K; C08K5/00; C08K5/56; C08L; C08L83/00; C08L83/04; C08G77/06; C08G77/08; C08G77/12; C08G77/20; Y; Y10; Y10S; Y10S264/00; Y10S264/30; Y10S528/00; Y10S528/901
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
103 words
A composition comprising an organosilicon compound containing Si-bonded hydrogen and an organic compound containing an aliphatic multiple bond and a platinum catalyst selected from the group consisting of complexes of the formula (R.sup.1)PtX.sub.2, and (R.sub.2 SO)(Z)PtY.sub.2 where R is selected from the group consisting of hydrocarbon radicals and substituted hydrocarbon radicals, R 1 is selected from the group consisting of cyclic hydrocarbon radicals and substituted cyclic hydrocarbon radicals having two aliphatic carbon-carbon double bonds, X is selected from the group consisting of halogen atoms and alkyl radicals, Z is a hydrocarbon radical having a carbon-carbon double bond and Y is a halogen atom.
Claim 2
Dependent Claim
103 words
A composition comprising an organosilicon compound containing Si-bonded hydrogen and an organic compound containing an aliphatic multiple bond and a platinum catalyst selected from the group consisting of complexes of the formula (R.sup.1)PtX.sub.2, and (R.sub.2 SO)(Z)PtY.sub.2 where R is selected from the group consisting of hydrocarbon radicals and substituted hydrocarbon radicals, R 1 is selected from the group consisting of cyclic hydrocarbon radicals and substituted cyclic hydrocarbon radicals having two aliphatic carbon-carbon double bonds, X is selected from the group consisting of halogen atoms and alkyl radicals, Z is a hydrocarbon radical having a carbon-carbon double bond and Y is a halogen atom.
Claim 3
Dependent Claim
14 words
The composition of claim 1, wherein R 1 is dicyclopentadiene and X is chlorine.
Claim 4
Dependent Claim
23 words
The composition of claim 1, wherein R 1 is dicyclopentadiene and X is an alkyl radical having from 1 to 4 carbon atoms.
Claim 5
Dependent Claim
16 words
The composition of claim 1, wherein the platinum complex having the formula (R.sub.2 SO)(Z)PtY.sub.2 is dimethylsulfoxide-ethylene-platinum-(II)-dichloride.
Claim 6
Dependent Claim
124 words
An improved process for the addition of an organosilicon compound containing Si-bonded hydrogen to an organic compound containing an aliphatic multiple bond in the presence of a platinum catalyst, the improvement which comprises conducting the addition in the presence of a platinum catalyst selected from the group consisting of complexes of the formula (R.sup.1)PtX.sub.2, and (R.sub.2 SO)(Z)PtY.sub.2 where R is selected from the group consisting of hydrocarbon radicals and substituted hydrocarbon radicals, R 1 is selected from the group consisting of cyclic hydrocarbon radicals and substituted cyclic hydrocarbon radicals having two aliphatic carbon-carbon double bonds, X is selected from the group consisting of halogen atoms and alkyl radicals, Z is a hydrocarbon radical having a carbon-carbon double bond and Y is a halogen atom.
Claim 7
Dependent Claim
124 words
An improved process for the addition of an organosilicon compound containing Si-bonded hydrogen to an organic compound containing an aliphatic multiple bond in the presence of a platinum catalyst, the improvement which comprises conducting the addition in the presence of a platinum catalyst selected from the group consisting of complexes of the formula (R.sup.1)PtX.sub.2, and (R.sub.2 SO)(Z)PtY.sub.2 where R is selected from the group consisting of hydrocarbon radicals and substituted hydrocarbon radicals, R 1 is selected from the group consisting of cyclic hydrocarbon radicals and substituted cyclic hydrocarbon radicals having two aliphatic carbon-carbon double bonds, X is selected from the group consisting of halogen atoms and alkyl radicals, Z is a hydrocarbon radical having a carbon-carbon double bond and Y is a halogen atom.
Claim 8
Dependent Claim
15 words
The improved process of claim 5, wherein R 1 is dicyclopentadiene and X is chlorine.
Claim 9
Dependent Claim
24 words
The improved process of claim 5, wherein R 1 is dicyclopentadiene and X is an alkyl radical having from 1 to 4 carbon atoms.
Claim 10
Dependent Claim
17 words
The improved process of claim 5, wherein the platinum complex having the formula (R.sub.2 SO)(Z)PtY.sub.2 is dimethylsulfoxide-ethylene-platinum-(II)-dichloride.
Claim 11
Dependent Claim
30 words
The improved process of claims 5, 6, 7, or 8 wherein the organosilicon compound is an organopolysiloxane containing Si-bonded hydrogen and the organic compound is an organopolysiloxane containing alkenyl groups.
Claim 12
Dependent Claim
126 words
An improved method for making dental impressions which comprises applying a composition containing an organopolysiloxane having alkenyl groups, an organopolysiloxane containing Si-bonded hydrogen and a platinum catalyst to a tooth and thereafter removing the crosslinked organopolysiloxane impression, the improvement which comprises adding a platinum catalyst selected from the group consisting of complexes of the formula (R.sup.1)PtX.sub.2 and (R.sub.2 SO)(Z)PtY.sub.2 where R is selected from the group consisting of hydrocarbon radicals and substituted hydrocarbon radicals, R 1 is selected from the group consisting of cyclic hydrocarbon radicals and substituted cyclic hydrocarbon radicals having two aliphatic carbon-carbon double bonds, X is selected from the group consisting of halogen atoms and alkyl radicals, Z is a hydrocarbon radical having a carbon-carbon double bond and Y is a halogen atom.
Claim 13
Dependent Claim
126 words
An improved method for making dental impressions which comprises applying a composition containing an organopolysiloxane having alkenyl groups, an organopolysiloxane containing Si-bonded hydrogen and a platinum catalyst to a tooth and thereafter removing the crosslinked organopolysiloxane impression, the improvement which comprises adding a platinum catalyst selected from the group consisting of complexes of the formula (R.sup.1)PtX.sub.2 and (R.sub.2 SO)(Z)PtY.sub.2 where R is selected from the group consisting of hydrocarbon radicals and substituted hydrocarbon radicals, R 1 is selected from the group consisting of cyclic hydrocarbon radicals and substituted cyclic hydrocarbon radicals having two aliphatic carbon-carbon double bonds, X is selected from the group consisting of halogen atoms and alkyl radicals, Z is a hydrocarbon radical having a carbon-carbon double bond and Y is a halogen atom.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-29 | 1984-12-29 | 1985-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-29 | 1988-12-29 | 1989-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-29 | 1992-12-29 | 1993-06-30 | $7700.00 | Window Closed / Lapsed |